The molecular weight is 400.48 g/mol, the dimensions of the molecule in its plane are ~18.4×7 Å.[3] and its sublimation temperature is above 330 °C.[4] It is non-polar and therefore only slightly soluble, for example in acetone.
The structure of bulk DIP crystals has recently been studied by Pflaum et al., who found two distinct phases at room temperature and at temperatures above 160 °C. In thin films for growth ‘near equilibrium’ (at substrate temperature of about 130 °C) by organic molecular beam deposition (OMBD), DIP has been shown to order very well.[2][10] The structure of thin DIP films has been characterized ‘post-growth’,[2][11][12][13] with structures differing from the room-temperature bulk structure. These thin-film structures depend on the substrate used, and also on the substrate temperature during growth.[10]
References
^J. von Braun, G. Manz, in Deutsches Reichspatentamt, Berlin. (Germany, 1934).
^ abcE. Clar, Polycyclic hydrocarbons (Academic Press, London, New York, 1964), p. 2
^Dürr, A. C.; Schreiber, F.; Münch, M.; Karl, N.; Krause, B.; Kruppa, V.; Dosch, H. (2002). "High structural order in thin films of the organic semiconductor diindenoperylene". Applied Physics Letters. 81 (12): 2276. Bibcode:2002ApPhL..81.2276D. doi:10.1063/1.1508436.
^A. C. Dürr, Ph.D. thesis, Universität Stuttgart (2002)